Mongo

Aggregation

Aggregation operations process data records and return computed results. Aggregation operations group values from multiple documents together, and can perform a variety of operations on the grouped da [...]

MySql to mongo

SQL SELECT Statements MongoDB find() Statements SELECT * FROM people db.people.find() SELECT id, user_id, status FROM people db.people.find( { }, { user_id: 1, status: 1 } ) [...]